The CSA keyboard, or CAN/CSA Z243.200-92, is the official keyboard layout of Canada. Often referred to as ACNOR, it is best known for its use in the Canadian computer industry for the French ACNOR keyboard layout, published as CAN/CSA Z243.200-92. Canadian Multilingual Standard (CMS) on Windows is based on this standard, with a few differences. IBM has also developed a layout based on the CSA keyboard, called Canadian French IBM ID-445. Apple has used this layout as their default French Canadian keyboard since the 1990s.